Ornithologisches Centralblatt (L.A. Kittler, 1879)

Ornithologisches Centralblatt (1882)

The Ornithologist; a magazine of ornithology and oölogy. First series - Swann, H. Kirke (Harry Kirke), 1871 -1926 (John Bale & Sons, 1896)

The Ornithologist and oölogist (1889)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H.W. Rokker, printer, 1889)

The ornithology of Illinois - Ridgway, Robert, 1850 -1929 (H. W. Rokker, printer, 1889)

Ornitologia della Papuasia e delle Molucche - Salvadori, Tommaso, 1835 -1923 (G.B. Paravia, 1889)

Ornitologia della Papuasia e delle Molucche - Salvadori, Tommaso, 1835 -1923 (G.B. Paravia, 1880)

Ornitologia della Papuasia e delle Molucche : parte prima-[terza] - Salvadori, Tommaso, 1835 -1923 (Stamperia reale G.B. Paravia e co. di I. Vigliardi, 1880)

The Osprey (The Osprey Co, 1900)

Osteologia avium, or, A sketch of the osteology of birds - Brooks, Vincent, 1815? -1885 (Published by R. Hobson, Wellington, Salop, 1867)

Osteologia avium : or a sketch of the osteology of birds - Eyton, T. C. (Thomas Campbell), 1809 -1880 (Salop, R. Hobson)

Our native birds; how to protect them and attract them to our homes - Lange, D. (Dietrich), 1863 -1940 (The Macmillan company, 1899)

Our native birds of song and beauty, being a complete history of all the songbirds, flycatchers, hummingbirds, swifts, goatsuckers, woodpeckers, kingfishers, trogons, cuckoos, and parrots, of North America - Nehrling, Henry, 1853 -1929 (G. Brumder, 1893)

Outlines of American ornithology : part 1, Land birds - Baird, Spencer Fullerton, 1823 -1887 (Little, Brown, 1873)

Outlines of general zoology - Baird, Spencer Fullerton, 1823 -1887 (Rudolph Garrigue, 1851)

Pacific coast avifauna - Cooper Ornithological Club. (Cooper Ornithological Club, 1919)

Die Papageien - Finsch, O. (Otto), 1839 -1917 (Brill, 1867)